Integrate AppLovin with mediation

This guide shows you how to use the Google Mobile Ads SDK to load and display ads from AppLovin using mediation, covering both bidding and waterfall integrations. It covers how to add AppLovin to an ad unit's mediation configuration, and how to integrate the AppLovin SDK and adapter into a Flutter app.

Supported integrations and ad formats

The AdMob mediation adapter for AppLovin has the following capabilities:

Integration
Bidding
Waterfall
Formats
Banner	^1
Interstitial
Rewarded

¹ Banner ads (excluding MREC banners) are supported only in mediation. Bidding does not support any type of banner ads.

Requirements

• Latest Google Mobile Ads SDK
• Flutter 3.7.0 or higher
• To deploy on Android
  • Android API level 21 or higher
• To deploy on iOS
  • iOS deployment target of 12.0 or higher
• A working Flutter project configured with Google Mobile Ads SDK. See Get Started for details.
• Complete the mediation Get started guide

Step 1: Set up configurations in AppLovin UI

Sign up or log in to your AppLovin account.

To set up your AdMob ad unit, you'll need your AppLovin SDK Key and Report Key. To find them, go to the AppLovin UI > Account > Keys to see both values.

If you plan on just integrating bidding, you can proceed to configure your mediation settings.

Select app for mediation

Bidding

This step isn't required for bidding integrations.

Waterfall

On the AppLovin UI, select Applications under the Monetization section to get to your registered apps. Select the app you'd like to use with mediation from the list of available apps.

Create a zone

Bidding

This step isn't required for bidding integrations.

Waterfall

On the AppLovin UI, select Zones under the Monetization section to get to your registered zone IDs. If you have already created the required zones for your app, skip ahead to Step 2. To create a new zone ID, click Create Zone.

Enter the name of Zone ID, select Android as the Platform, and choose the Ad Type.

Configure Pricing for the zone by selecting either Flat CPM or Optimized by AppLovin. CPMs can be configured on a per country basis for the Flat CPM option. Then, click Save.

Android

iOS

Once the zone is created, the zone ID can be found under the Zone ID column.

Android

iOS

Note: We highly recommend that you create an AppLovin zone corresponding to each AdMob ad unit so that AdMob can more effectively Optimize ad sources in mediation.

Turn on test mode

Follow the instructions in AppLovin's MAX Test Mode guide on how to enable AppLovin test ads.

Step 2: Set up AppLovin demand in AdMob UI

Configure mediation settings for your ad unit

Android

For instructions, see step 2 in the guide for Android.

iOS

For instructions, see step 2 in the guide for iOS.

Add AppLovin Corp. to GDPR and US state regulations ad partners list

Important: Verify that you have Account Management permission to complete the configuration for EU Consent and GDPR, CPRA, and User Messaging Platform. See Manage user access to your account for details.

Follow the steps in GDPR settings and US state regulations settings to add Applovin Corp. to the GDPR and US state regulations ad partners list in the AdMob UI.

Step 3: Import the AppLovin SDK and adapter

Note: Failure to integrate the compatible AppLovin and Google Mobile Ads SDK versions might lead to build issues.

Integration through pub.dev

Add the following dependency with the latest versions of the Applovin SDK and adapter in your package's pubspec.yaml file:

dependencies:
  gma_mediation_applovin: ^1.0.0

Manual Integration

Download the latest version of Google Mobile Ads mediation plugin for Applovin, extract the downloaded file, and add the extracted plugin folder (and its contents) to your Flutter project. Then, reference the plugin in your pubspec.yaml file by adding the following dependency:

dependencies:
  gma_mediation_applovin:
    path: path/to/local/package

Step 4: Implement privacy settings on AppLovin SDK

EU consent and GDPR

Under the Google EU User Consent Policy, you must ensure that certain disclosures are given to, and consents obtained from, users in the European Economic Area (EEA) regarding the use of device identifiers and personal data. This policy reflects the requirements of the EU ePrivacy Directive and the General Data Protection Regulation (GDPR). When seeking consent, you must identify each ad network in your mediation chain that may collect, receive, or use personal data and provide information about each network's use. Google currently is unable to pass the user's consent choice to such networks automatically.

AppLovin supports reading the consent string from shared preferences and setting the consent status accordingly.

If you are not using a CMP that writes the consent string into the shared preferences, you can use GmaMediationApplovin.setHasUserConsent() and GmaMediationApplovin.setIsAgeRestrictedUser() methods. The following sample code shows how to pass consent information to the AppLovin SDK. These options must be set before you initialize the Google Mobile Ads SDK to ensure they get forwarded properly to the AppLovin SDK.

import 'package:gma_mediation_applovin/gma_mediation_applovin.dart';
// ...

GmaMediationApplovin.setHasUserConsent(true);
GmaMediationApplovin.setIsAgeRestrictedUser(true);

See AppLovin's privacy settings for more information.

US states privacy laws

U.S. states privacy laws require giving users the right to opt out of the "sale" of their "personal information" (as the law defines those terms), with the opt-out offered via a prominent "Do Not Sell My Personal Information" link on the "selling" party's homepage. The U.S. states privacy laws compliance guide offers the ability to enable restricted data processing for Google ad serving, but Google is unable to apply this setting to each ad network in your mediation chain. Therefore, you must identify each ad network in your mediation chain that may participate in the sale of personal information and follow guidance from each of those networks to ensure compliance.

The Google Mobile Ads mediation plugin for AppLovin includes the GmaMediationApplovin.setDoNotSell() method. The following sample code shows how to pass consent information to the AppLovin SDK. These options must be set before you initialize the Google Mobile Ads SDK to ensure they get forwarded properly to the AppLovin SDK.

import 'package:gma_mediation_applovin/gma_mediation_applovin.dart';
// ...

GmaMediationApplovin.setDoNotSell(true);

See AppLovin's Privacy documentation for more information.

Step 5: Add required code

Android

No additional code is required for AppLovin integration.

iOS

SKAdNetwork integration

Follow AppLovin's documentation to add the SKAdNetwork identifiers to your project's Info.plist` file.

Step 6: Test your implementation

Enable test ads

Make sure you register your test device for AdMob and enable test mode in Applovin UI.

Important: Disable test mode for AdMob and Applovin before releasing your app.

Verify test ads

To verify that you are receiving test ads from Applovin, enable single ad source testing in ad inspector using the Applovin (Bidding) and Applovin (Waterfall) ad source(s).

Optional steps

Network-specific parameters

The AppLovin adapter supports passing a AppLovinMediationExtras object to the ad request to set network-specific parameters. The following sample code shows how to disable audio on video ads using the isMuted parameter:

AppLovinMediationExtras applovinExtras = AppLovinMediationExtras(isMuted: true)

AdRequest request = AdRequest(
    keywords: <String>['foo', 'bar'],
    contentUrl: 'http://foo.com/bar.html',
    mediationExtras: [applovinExtras],
);

Optimizations

Adding a call to GmaMediationApplovin.initializeSdk('sdkKey') to your launch activity provides AppLovin the ability to track events as soon as the app starts.

Error codes

If the adapter fails to receive an ad from AppLovin, publishers can check the underlying error from the ad response using ResponseInfo under the following classes:

Android

com.google.ads.mediation.applovin.mediation.ApplovinAdapter
com.google.ads.mediation.applovin.AppLovinMediationAdapter

iOS

GADMAdapterAppLovin
GADMAdapterAppLovinRewardBasedVideoAd
GADMediationAdapterAppLovin

Here are the codes and accompanying messages thrown by the AppLovin adapter when an ad fails to load:

Android

Error code	Reason
-1009 to -1, 204	AppLovin SDK returned an error. See AppLovin's documentation for more details.
101	The requested ad size does not match an AppLovin supported banner size.
103	Context is null.
104	AppLovin bid token is empty.
105	Requested multiple ads for the same zone. AppLovin can only load 1 ad at a time per zone.
106	Ad is not ready to display.
108	AppLovin Adapter does not support the ad format being requested.

iOS

Error code	Reason
-1009 to -1, 204	AppLovin SDK returned an error. See AppLovin's documentation for more details.
101	The requested ad size does not match an AppLovin supported banner size.
102	AppLovin server parameters configured in the AdMob UI are missing/invalid.
103	Failed to show AppLovin ad.
104	Requested multiple ads for the same zone. AppLovin can only load 1 ad at a time per zone.
105	AppLovin SDK key not found.
107	Bid token is empty.
108	AppLovin Adapter does not support the ad format being requested.
110	AppLovin sent a successful load callback but loaded zero ads.
111	Unable to retrieve instance of the AppLovin SDK.
112	User is a child.

AppLovin Flutter Mediation Adapter Changelog

Next Version

• Built and tested with the Google Mobile Ads Flutter Plugin version 5.2.0.

1.2.0

• Verified compatibility with AppLovin Android adapter version 12.6.1.0.
• Verified compatibility with AppLovin iOS adapter version 12.6.1.0.
• Built and tested with the Google Mobile Ads Flutter Plugin version 5.1.0.

1.1.0

• API for the GmaMediationApplovin is no longer static.
• Verified compatibility with AppLovin Android adapter version 12.4.3.0.
• Verified compatibility with AppLovin iOS adapter version 12.4.2.0.
• Built and tested with the Google Mobile Ads Flutter Plugin version 5.1.0.

1.0.0

• Initial release.
• Verified compatibility with AppLovin Android adapter version 12.3.0.0
• Verified compatibility with AppLovin iOS adapter version 12.2.1.0
• Built and tested with the Google Mobile Ads Flutter Plugin version 5.0.0.